Set the alarm clock for 8:45 am

Leave this tab open — the alarm only rings while the tab stays open.

The alarm goes off in: ::

You can also try the other alarm clocks

Alarm clock for 8:43 am Alarm clock for 8:44 am Alarm clock for 8:46 am Alarm clock for 8:47 am

Going to bed for a 8:45 am alarm

Asleep by 11:30 pm — 6 full sleep cycles, about 9 hours
Asleep by 1:00 am — 5 full sleep cycles, about 7 hours
Asleep by 2:30 am — 4 full sleep cycles, about 6 hours

A sleep cycle runs about 90 minutes, and most people take around 15 minutes to drop off. Waking at the end of a cycle feels easier than waking in the middle of one.

8:45 am across the country

Sydney	8:45 am
Brisbane	8:45 am
Adelaide	8:15 am
Perth	6:45 am
Darwin	8:15 am

Times are worked out live in your browser, so daylight saving is already accounted for.

How to use the online alarm clock

Between the commute and the first coffee, 8:45 am is often the last checkpoint before the day properly starts. This tool sets a browser alarm for 8:45 am that rings through your device's speakers, handy for a desk you're already sitting at or a laptop open on the kitchen bench.

Select a sound, hit Start, and that's the whole setup. The countdown runs inside this browser tab rather than on your device's operating system, so it needs to remain open, on a phone or laptop, until the alarm actually goes off.

This works well as a second alarm, one that isn't tangled up with phone notifications, do-not-disturb settings, or low battery. It genuinely won't ring if the tab gets closed or the device goes to sleep, so treat it as a backup or a work-desk tool rather than the only alarm for something important. On a 24-hour clock 8:45 am is written 08:45, and spoken aloud it's quarter to nine in the morning. Written the Australian way that's 8.45 am, and typed in a hurry it's often 8:45am. Set an alarm for 8:45 am, set the alarm to 8:45 am, set my alarm for 8:45 am — all of it lands on this page and does the same thing.

Common questions

Can I use this on my phone instead of a laptop?

Yes, it works in a mobile browser the same way, but phones are more likely to lock the screen or sleep, which can stop the alarm from ringing. A laptop or desktop tends to be more reliable for this.

Can I set more than one alarm at a time?

This page is built around a single alarm at a time. For multiple alarms, open a separate tab for each one and set a different time in each, keeping every tab open until it's rung.

Why use a browser alarm instead of my phone's built-in one?

Mainly for reliability against silent mode, do-not-disturb, or a phone left charging out of earshot. It's a useful backup or a desk-based alternative, though it depends on this tab staying open rather than running in the background of your phone.

Is there a cost to use this?

No, it's free, with no sign-up and no limit on how many times you set it. It just needs the tab left open until the time you've chosen arrives.